Tomasz, 45 — why he took a cash loan instead of mortgage-backed for the renovation
Tomasz, 45-year-old IT manager from Poznań, received a 100 m² flat in gift from his parents — needing comprehensive renovation (85,000 PLN). He had an unencumbered property, so theoretically could have taken a mortgage-backed loan at lower RRSO. After analysing setup costs (5,300 PLN) and processing time (6 weeks vs 5 days) he chose an 85,000 PLN cash loan over 84 months at 9.8% RRSO at mBank (after negotiation). Net saving vs mortgage-backed: ~4,700 PLN + 6 weeks of earlier residence.
Tomasz’s story illustrates when loan math doesn’t beat setup-cost math. We’ll show his analysis and why for 80–120k PLN amounts the cash loan often beats a mortgage-backed loan, even though mortgage-backed has lower RRSO on paper.
Situation: parental gift + renovation need
Tomasz, 45, IT project manager in Poznań, 12,500 PLN net. Married to Kasia (teacher, 5,200 PLN net), two children (12 and 15). Renting a city-centre flat for 8 years at 3,400 PLN/month.
In January 2025 his parents (68, 70) gifted him a 3-room 100 m² flat in Poznań-Jeżyce (1970s block). Market value as-is ~480,000 PLN. Post-renovation: ~580,000 PLN. Gift from parents to child (Group I) is exempt from gift tax if reported via SD-Z2 within 6 months. Tomasz filed — zero tax.
Detailed quote — 85,000 PLN
| Scope | Cost |
|---|---|
| Full bathroom renovation (4.5 m²) | 20,000 PLN |
| Kitchen — replacement + custom cabinets | 18,000 PLN |
| Electrical installation (100 m²) | 12,000 PLN |
| Wall smoothing + painting (full flat) | 14,000 PLN |
| Floor panels + trim (100 m²) | 12,000 PLN |
| Interior doors (4) + built-in furniture | 9,000 PLN |
| Total | 85,000 PLN |
Tomasz set aside 10,000 PLN (from his savings) as buffer — ultimately unused, returned as loan overpayment.
Analysis: cash vs mortgage-backed
Cash loan
- RRSO: 9.8% (post-negotiation)
- Amount: 85,000 PLN
- Term: 84 months
- Instalment: 1,410 PLN/month
- Total cost: 118,500 PLN
- Setup costs: 0 PLN
- Processing: 5 days
- Total outlay: 118,500 PLN
Mortgage-backed loan
- RRSO: 8.5%
- Amount: 85,000 PLN
- Term: 84 months
- Instalment: 1,350 PLN/month
- Loan total: 113,400 PLN
- Setup costs: ~5,300 PLN
- Processing: 6 weeks
- Total outlay: 118,700 PLN
Maths verdict
Total outlay difference: 118,700 − 118,500 = 200 PLN in favour of cash loan. Setup costs swallowed the lower-RRSO saving. Plus: 6 weeks wait vs 5 days = 6 weeks of extra rent (3,400 PLN/mo ≈ 5,100 PLN loss). Net: cash loan won by ~5,300 PLN and 6 weeks earlier.
Where Tomasz is today (April 2026)
Family moved in May 2025 (2 months after loan release). Rent saving vs prior place: 3,400 PLN/month. Loan instalment: 1,410 PLN/month. Net budget gain: 1,990 PLN/month, saved for kids\' education fund.
After 1 year (April 2026): loan balance dropped from 85,000 to 72,300 PLN. Tomasz plans a 10,000 PLN one-off overpayment from annual bonus — shortens the term by ~8 months and saves an additional 1,500 PLN in interest (plus Lexitor proportional fee refund).
Źródła i podstawa prawna
- [1] Consumer Credit Act — Dz.U. 2011 nr 126 poz. 715
- [2] KNF Recommendation S — KNF
Stan prawny i dane liczbowe zweryfikowane przez redakcję kreddo.pl. Jeśli zauważyłeś nieaktualne źródło — daj nam znać.
People also ask
Which loan is best for renovating a flat?
Up to 100,000 PLN — bank cash loan (faster, unsecured, no setup costs). Above 150,000 PLN — mortgage-backed loan (lower RRSO, 20-year term possible). Between 100–150k depends: with time and unencumbered property, mortgage-backed; without both, cash.
Is a developer renovation loan worth it?
Some developers offer "turnkey" finishing with payment instalments. Typically equivalent to RRSO 15–20% vs 10–12% bank credit. Much cheaper to take a bank loan and commission the work yourself.
Frequently Asked Questions
Why does a cash loan beat a mortgage-backed loan at mid amounts?
Mortgage-backed loans have lower RRSO due to collateral. For Tomasz the RRSO gap was 10.5% (cash) vs 8.5% (mortgage-backed) = 2 p.p. At 85,000 PLN / 7 years that's ~10,000 PLN interest saving. BUT setup costs of mortgage-backed (appraisal, lien registration, bridge insurance) totalled 4,500 PLN + 800 PLN of bridge insurance = 5,300 PLN. Plus 6 weeks of processing vs 5 days. Net: mortgage-backed saving ~4,700 PLN, but at the cost of 6 weeks waiting.
What's the break-even for cash vs mortgage-backed?
Formula: RRSO difference × amount × term > mortgage-backed setup cost. In practice the break-even is around 120,000–150,000 PLN. Below that — cash. Above that — mortgage-backed. Additional factors: unencumbered property (required for mortgage-backed), time (4–6 weeks), cost certainty (mortgage-backed harder to adjust mid-build). At 85,000 PLN Tomasz was below threshold — cash loan.
How did Tomasz negotiate terms?
Key tactics: (1) Three offers in hand — mBank, PKO BP, ING. mBank offered 10.1% RRSO. (2) Cross-sell leverage — promise to move ROR to mBank in exchange for 9.8% RRSO. (3) Fee negotiation — from 5% to 2% (banks often have campaign caps). Net: initial 10.5% / 5% → final 9.8% / 2%. Saving: ~3,200 PLN over the loan term.
Was a loan for renovating an inherited flat a good idea?
Alternative: family loan for the same purpose. Tomasz's parents didn't have 85,000 PLN liquid — their wealth was mostly in the just-gifted flat. Bank loan was the only option. Parents helped differently: they became guarantors (not formally required, but strengthened the application and lowered RRSO by 0.3 p.p.).